The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2009
Filed:
Aug. 31, 2007
Cheng-shun Liao, Hsinchu, TW;
S-wei Chen, Hsinchu, TW;
Sung-nan Chen, Hsinchu, TW;
Chao-shun Chen, Hsinchu, TW;
Mei-ling Chen, Hsinchu, TW;
Cheng-Shun Liao, Hsinchu, TW;
S-Wei Chen, Hsinchu, TW;
Sung-Nan Chen, Hsinchu, TW;
Chao-Shun Chen, Hsinchu, TW;
Mei-Ling Chen, Hsinchu, TW;
Young Optics Inc., Hsinchu, TW;
Abstract
An illumination system including at least one first light source, a prism and a light uniforming device is provided. The first light source is capable of providing a first beam. The prism is disposed on a transmission path of the first beam, and has four first facets. Two of the first facets are opposite to each other, and the other two first facets are opposite to each other. The first beam passes through one of the first facets and is totally internally reflected by another first facet opposite to the one of the first facets. The light uniforming device is disposed on the transmission path of the first beam from the another first facet. The cost of the illumination system is lower, and the illumination system has high flexibility of the light source design and can provide illumination with high brightness.